. . "21"^^ . . "Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures"@en . . . . . . "request for comments publication"@en . "RFC2048"@en . . . . . . "RFC 2048: Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures"@en . . . "Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures"@en . "RFC 2048: Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures"@en . . . . "10.17487/RFC2048" . . "2048" . . . . . . . . . . "1996-11-01T00:00:00Z"^^ . . . . . . . . . . . . . . "journals/rfc/rfc2048" . "\u043F\u0443\u0431\u043B\u0456\u043A\u0430\u0446\u0456\u044F \u0437\u0430\u043F\u0438\u0442\u0443 \u043A\u043E\u043C\u0435\u043D\u0442\u0430\u0440\u0456\u0432"@uk . "RFC 2048: Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures"@en . . .